Super-flexible self-generating yarn, all-fiber-based super-flexible thermoelectric self-generating fabric and preparation method thereof

An ultra-flexible, self-generating technology, applied in fabrics, fiber processing, knitting, etc., can solve the problems of uniformity and stability of power generation, limited power generation efficiency, inconvenient integration and use of wearable micro-nano electronic devices, etc. Achieve good uniformity of power generation, improve power generation efficiency and integration, and realize the effect of large-scale production

Active Publication Date: 2021-08-17
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the fiber-based thermoelectric functional material can realize self-power generation, it is not convenient for the integration and use of wearable micro-nano electronic devices due to the thickness direction of the fiber substrate as a whole, and the power generation efficiency is limited. When the temperature difference is uneven, the uniformity and stability of power generation are easily affected

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Super-flexible self-generating yarn, all-fiber-based super-flexible thermoelectric self-generating fabric and preparation method thereof
  • Super-flexible self-generating yarn, all-fiber-based super-flexible thermoelectric self-generating fabric and preparation method thereof
  • Super-flexible self-generating yarn, all-fiber-based super-flexible thermoelectric self-generating fabric and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0049] The preparation method of the self-generating yarn is to first prepare the P-type thermoelectric material region and / or N-type thermoelectric material region and the electrode, and then press the P-type thermoelectric material region and / or N-type thermoelectric material region and the electrode. or weave the P-type thermoelectric material region and / or N-type thermoelectric material region first, then weave the fabric according to the position of the P-type thermoelectric material region and / or N-type thermoelectric material region, and finally Electrodes were prepared from the portion of the generating yarn on the surface of the fabric.

[0050] The present invention also provides a method for preparing an all-fiber-based ultra-flexible temperature-difference self-generating fabric, comprising the following steps:

[0051] S1. Add DMSO with a volume fraction of 5% to the basic P-type thermoelectric material, prepare a solution comprising PEDOT:PSS through ultrasonic t...

Embodiment 1

[0066] An all-fiber-based ultra-flexible temperature-difference self-generating fabric, prepared by the following steps:

[0067] S1. Adding its volume fraction to 1.3% PEDOT:PSS aqueous solution (specification: Clevios PH1000) is 5% DMSO, and prepares a solution comprising PEDOT:PSS through sonication (sonication time is 30-45min), Then add 1-ethyl-3-methylimidazolium dicyandiamide ammonium salt (EMIM DCA) of PEDOT:PSS aqueous solution gross mass 1wt%, fully stir to form uniform IL / PEDOT mixed solution, i.e. P-type thermoelectric material solution (stirring The temperature is 25°C, the stirring speed is 600r / min, and the stirring time is 15h); when the ionic liquid is added to the basic thermoelectric material, a complete film can be formed on the surface of the yarn, which maintains the flexibility of the yarn itself, and can obtain ultra- Flexible power-generating yarns. Moreover, the addition of the ionic liquid can ensure high electrical conductivity and at the same time...

Embodiment 2-5 and comparative example 1

[0075] Compared with Example 1, an all-fiber-based ultra-flexible temperature-difference self-generating fabric is different in that in step S1, the types and contents of ionic liquids are shown in Table 1. Others are substantially the same as in Embodiment 1, and will not be repeated here.

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Abstract

The invention provides a super-flexible self-generating yarn, a full-fiber-based super-flexible thermoelectric self-generating fabric and a preparation method thereof. According to the super-flexible self-generating yarn, a P-type thermoelectric material composed of PEDOT: PSS and ionic liquid is adopted to conduct coating modification on fibers or yarns, the film-forming property of PEDOT: PSS is remarkably improved, the yarn flexibility is enhanced, and meanwhile the thermoelectric property of the yarns is improved. An N-type thermoelectric material and the P-type thermoelectric material are coated on the surface of a yarn base material in an adjacent mode and are connected through electrodes to form a series thermoelectric path. The flexibility, thermoelectricity and power generation stability of the prepared full-fiber-based super-flexible thermoelectric self-power-generating fabric are remarkably improved, and an effective way is provided for the full-fiber-based super-flexible thermoelectric self-power-generating fabric. Therefore, the super-flexible self-generating yarn has relatively high popularization and application values in the fields of sensing device power supply, intelligent clothing and wearable electronic devices.

Description

technical field [0001] The invention relates to the technical field of functional fabrics, in particular to an ultra-flexible self-generating yarn, an all-fiber-based ultra-flexible temperature-difference self-generating fabric and a preparation method thereof. Background technique [0002] With the rapid development of artificial intelligence and the popularization of smart terminals, wearable electronic devices present a huge market prospect. As the core part of artificial flexible electronic devices, flexible sensors have great application potential in human clinical diagnosis, health assessment, health monitoring, virtual electronics, flexible touch screen, flexible electronic skin, and even industrial robots. A key technology of wearable electronic devices lies in the power supply of various integrated electronic devices. The existing technology is mostly powered by external power supply, which increases the burden on wearable electronic devices, and it is difficult to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/63D06M15/233D06M13/473D06M11/74D03D1/00D03D15/533D04B1/14D04B21/00D04H1/42D04H3/00
CPCD06M15/63D06M15/233D06M13/473D06M11/74D03D1/0088D03D15/00D04B1/14D04B21/00D04H3/00D04H1/42
Inventor 李沐芳曾凡佳王栋罗梦颖卿星陆莹钟卫兵
Owner WUHAN TEXTILE UNIV
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